Color emulation, Cmyk color emulation – HP Designjet T2500 eMultifunction Printer series User Manual

Page 127

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Color emulation

Your printer can emulate the color behavior of other devices: RGB devices such as monitors, and CMYK
devices such as presses and printers.

You can set color emulation in the following ways:

In the Windows PostScript driver dialog: select the Color tab, and Printer Managed Colors.

In the Mac OS X Print dialog: select the Color Options panel, then select Printer Emulation from the
Color Management list.

For a good emulation, the printer needs a specification of the colors these devices can reproduce. The
standard way of encapsulating such information is in ICC profiles. As part of the solution, we provide the
most common standards for the different devices.

The options are as follows.

CMYK color emulation

A traditional workflow defines color in the CMYK space. For best results, the colors must be adjusted to the
printer, because different printers will produce different colors from the same CMYK data. If the image file
you are printing was not created specifically for your printer, it will require some readjustment, which can be
done using one of the following options provided with your printer.

None (Native): no emulation. The printer will use its default internal conversion from CMYK to RGB,
without following any color standard. This does not imply that results will be bad

ISO Coated 2-ECI is based on the characterization dataset FOGRA39L.txt, applicable to the following
reference printing conditions according to the international standard ISO 12647-2:2004/Amd 1:
commercial and specialty offset, paper type 1 and 2, gloss or matt coated paper, positive plates, tone
value increase curves A (CMY) and B (K), white backing.

Coated GRACoL 2006-ISO12647 provides GRACoL proofing and printing on Grade 1 coated paper, ISO
12647-2 Paper type 1.

PSO Uncoated ISO12647-ECI is based on the characterization data set FOGRA47L.txt, applicable to the
following reference printing condition according to the international standards ISO 12647- 2:2004 and
ISO 12647-2:2004/Amd 1:2007: commercial and specialty offset, paper type 4, uncoated white paper,
positive plates, tone value increase curves C (CMY) and D (K), white backing.

PSO LWC Improved-ECI is based on the characterization data set FOGRA45L.txt, applicable to the
following reference printing condition according to the international standards ISO 12647-2:2004 and
ISO 12647-2:2004/Amd 1:2007: commercial and specialty offset, improved LWC paper (light weight
coating), positive plates, tone value increase curves B (CMY) and C (K), white backing.

Web Coated SWOP 2006 Grade 3 provides SWOP® proofing and printing on U.S. Grade 3 coated
publication paper.

Web Coated SWOP 2006 Grade 5 provides SWOP® proofing and printing on U.S. Grade 5 coated
publication paper.

U.S. Sheetfed Coated 2 uses specifications designed to produce quality separations using U.S. inks
under the following printing conditions: 350% total area of ink coverage, negative plate, bright white
offset stock.

U.S. Sheetfed Uncoated 2 uses specifications designed to produce quality separations using U.S. inks
under the following printing conditions: 260% total area of ink coverage, negative plate, uncoated white
offset stock.

U.S. Web Coated (SWOP) 2 uses specifications designed to produce quality separations using U.S. inks
under the following printing conditions: 300% total area of ink coverage, negative plate, coated
publication-grade stock.

ENWW

Color management from printer drivers (PostScript printers) 117

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